Depends on the behaviour. On the times you've observed it 1) will it bounce between open wifi points if one does not allow internet access (set up a honeypot)

Depends on the behaviour. On the times you've observed it 1) will it bounce between open wifi points if one does not allow internet access (set up a honeypot) 2) will it try open wifi if you join it to a secured wifi and block that traffic 3) can you send de-auth packets to any open wifi the tv's radio connects to 4) can you desolder the wifi antenna completely